I had to update a Cisco SG350 recently, which should have been really easy but ended up being a bit of a pain.
Here’s how I’d do it again:
- Download the firmware:
https://www.cisco.com/c/en/us/support/switches/sg350-28-28-port-gigabit-managed-switch/model.html
- Ignore the GUI, pretend it never existed, as best I can work out it just doesn’t work well.
- Download a tftp software, I suggest tftpd64 as it brilliant:
https://pjo2.github.io/tftpd64/
- Run the tftp software and point it at the firmware, make a note of the IP.
- SSH to the switch with putty and run the following to check the version:
show ver
- Then run this command on the switch (The IP if the IP of the tftp software):
boot system tftp://192.168.1.2/image_tesla_hybrid_2.5.8.15_release_cisco_signed.bin
- Now reboot:
reboot
- Once it’s rebooted, check the version, and you are done!
show ver
